Index: openacs-4/packages/acs-content-repository/sql/postgresql/content-type.sql
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-content-repository/sql/postgresql/content-type.sql,v
diff -u -r1.10 -r1.11
--- openacs-4/packages/acs-content-repository/sql/postgresql/content-type.sql	1 Apr 2001 05:57:53 -0000	1.10
+++ openacs-4/packages/acs-content-repository/sql/postgresql/content-type.sql	2 Apr 2001 05:35:29 -0000	1.11
@@ -688,7 +688,8 @@
       parent_type, child_type, relation_tag, min_n, max_n
     ) values (
       register_child_type__parent_type, register_child_type__child_type, 
-      register_child_type__relation_tag, register_child_type__min_n, 
+      coalesce(register_child_type__relation_tag,''''), 
+      register_child_type__min_n, 
       register_child_type__max_n
     );
 
@@ -764,7 +765,7 @@
     ) values (
       register_relation_type__content_type, 
       register_relation_type__target_type, 
-      register_relation_type__relation_tag, 
+      coalesce(register_relation_type__relation_tag,''''), 
       register_relation_type__min_n, register_relation_type__max_n
     );